Suter



JI SUTER. Crayon-Sharpener.

No. 225,732. Patented Mar. 23, I880.

INVENTOR WITNESSES ATTORNEY YLPETERS, PNOTO-LITHDGRAPHER. WASMlNGTON. D C

UNITED STATES PATENT OFFICE.

JOHN SUTER, OF NEW YORK, N. Y.

CRAYON-SHARPENER.

SPECIFICATION forming part of Letters Patent No. 225,732, dated March 23, 1880. Application filed October 8, 1879.

To all whom it may concern:

Be it known that 1, JOHN SUTER, of the city, county, and State of New York, haveinvented certain new and useful Improvements in Tailors OhalkSharpeners, of which the following is a specification.

In the accompanying drawings, Figure 1 represents a top view; Fig. 2, a vertical transverse section, on line a: as, Fig. 1, of my improved tailors chalk-sharpener; and Fig. 8, a perspective view of a piece of tailors chalk or crayon.

Similar letters of reference indicate corresponding parts.

This invention relates to improvements in tailors chalk-Sharpeners, by which the working-edge may be quickly produced and restored on all substances used as chalk by garmentcutters, designers, and tailors, by which also receptacles for the pins, chalk, and other necessary articles are provided, and which is also adapted to be used as a weight for holding the paper patterns in position on the fabric to be cut.

Tailors crayon-Sharpeners having the same object in view have been used heretofore, but have failed to give satisfaction, inasmuch as the working-edge, as Well as the sides of the chalk or crayon, has to come in contact with the sharpener to fit it for use. The beveling of the sides of the crayon alone without any sharpening of the marking-edge has made it necessary to use a knife to complete the operation.

Another objection and defect of the sharpeners heretofore in use was, that file-plates with too fine grain were employed, which were soon choked up by the dust and became inoperative, so as not even to give a bevel to the sides of the crayon.

My invention is designed to overcome these defects and objections by employing toothed plates that permit the free passage of dust between them, the teeth being large and arranged to meet or intersect each other at an angle of inclination, thus providing for the sharpening of the marking-edge as well as for the sides of the chalk.

It consists, further, in riveting or otherwise fastening the toothed plates to spring end plates, these latter serving as clamps over the notched end walls of the dust-receiver, so as to secure the toothed plates in position, but 7 permitting them to be easily removed.

Referring to the drawings, A represents a hollow vessel, of oblong form and suitable material, preferably of cast metal, so as to be heavy enough to be used as a weight for holding down the paper pattern on the cloth.

The vessel A is divided by one or two longitudinal partition-walls, A, which are castin one piece therewith, into two or three chambers or "receptacles, the chamber B between the partitions serving as a dust-receiver, while the receptacle or receptacles G, at one or both sides thereof, serve as pockets for the reception of the chalk, pins, pencils, and other small articles used by the cutter. The upper parts are arranged at an angle, the converging portions forming the seats for the cutting plates D. These are screwed, riveted, or otherwise a secured at the same bevel as the seats to shield-shaped end plates, 1), which extend at right angles to the cutting-plates, and are fitted in such a manner to the vessel A that they bear with some spring-pressure on the end walls of the same, and hold thereby the cut.- tin g-plates securely in position on the inclined seats of the partition-walls.

The end walls are recessed or notched at a, so as to provide the required space for the cutting-plates.

By taking hold of the end plates the cutting plates may be removed whenever the dustchamber has to be emptied of the dust collected therein.

The cutting-plates D are made with coarse teeth, which are arranged to project in the same direction in both plates. The lower edges of the cutting-plates are on the same level, the lower parts of the teeth either touching or intersecting each other, butso as to leave triangular spaces of suflicient size to admit the passage of the dust without choking these spaces. The cutting-plates are made of sufficient length to admit the sharpening of the edge of the chalk and give it the proper bevel by passing it once or twice in opposite direction to the inclination of the teeth through the cuttingplates.

The entire sharpening device may be readily taken hold of and placed at any desired point,

the fileplates, substantially as and. for the purpose set, forth.

' In testimony that I claim the foregoing as my invention I have signed my name, in pres- 15 -ence of two witnesses, this 6th day of October,

JOHN SUTER. Witnesses:

PAUL GoEPEL, ADOLF DENGLER. 

